| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 774.33 | USD | 20250908 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 766.91 | USD | 20250907 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 766.91 | USD | 20250906 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 766.64 | USD | 20250902 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 766.83 | USD | 20250901 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 767.28 | USD | 20250831 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 767.28 | USD | 20250830 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 767.28 | USD | 20250829 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 766.93 | USD | 20250828 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 766.44 | USD | 20250827 |